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Finding the Fourth Proportional to 765,364,052.20, 1,055,638,443 and 577,200,266.60

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Solution

The fourth proportional to 765,364,052.20, 1,055,638,443 and 577,200,266.60 is: 796,111,065.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,364,052.20 : 1,055,638,443 = 577,200,266.60 : x
  2. Step 2: Convert to fraction form
    765,364,052.20/1,055,638,443 = 577,200,266.60/x
  3. Step 3: Cross multiply
    765,364,052.20x = 1,055,638,443 × 577,200,266.60
  4. Step 4: Simplify right side
    765,364,052.20x = 609,314,790,732,808,960
  5. Step 5: Solve for x
    x = 609,314,790,732,808,960/765,364,052.20
  6. Step 6: Final answer
    x = 796,111,065.03

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.